Ingestion is inefficient. Transfusion.
http://www.sciencemag.org/news/2015/10/antiaging-protein-real-deal-harvard-team-claims
Ingestion is inefficient. Transfusion.
http://www.sciencemag.org/news/2015/10/antiaging-protein-real-deal-harvard-team-claims
Blood test for everyone! If you show abnormal GDF11 after age 25, you have been "juicing".
Look up GDF11 and GDF14 proteins. LOTS of studies.